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for those looking for a compendium of mask studies this set from swiss policy research looks useful and has some good links and discussion.

also attaching 2 past debunkings of widely disseminated US studies that health officials have attempted to

first, the kansas study spread by CDC and so many "twitterdocs" and politicians.

it's a master class in cherry picking and misusing data through truncation.

the data proving it was false was widely available at the time it was


also the mass general study, a classic of the "sun-dance" variant: use no control group and then presume that any action undertaken was the result of some thing you did.

ignore the fact that the whole rest of (unmasked) massachusetts got the same


the fact that CDC has been spreading studies like these and using them alongside flimsy lab bench experiments with no clinical outcomes or even real world measurement speaks poorly of both CDC & the evidence for masks

the good studies do not support use



and lab bench droplet projection studies are meaningless.

it's one tiny aspect of a large system and may actually be counterproductive if masks are nebulizing droplets and making virus more aerosol in spread and more deeply